Drop-counting bottle



Feb. 9, 1943.

P. GIAVOTTO DROP-COUNTING 1mm;

Filed March 18, 1940 Patented Feb. 9, 1943 UNITED STATES TENT QFFICE.

DROP-COUNTING BOTTLE Application March 18, 1940, Serial No. 324,711 In Italy March 24, 1939 4 Claims.

This invention relates to a drop-counting bottle of a simpler construction with respect to like types of receptacles heretofore in use.

According to the invention the drop distribution is ensured without the necessity of displacing the bottle stopper.

The annexed drawing shows, by way of example only, one embodiment and a modification of the invention.

Fig. 1 shows, in longitudinal section along line l--I of Fig. 2, the mouth of a bottle constructed according to the invention.

Fig. 2 is a cross-section along line 2-2 of Fig. l, the closure-cap being omitted.

Figs. 3 and 4 show, in elevation and in plan view respectively, the bottle stopper with a yielding member to be inserted in the opening of the neck of the bottle.

Fig. 5 is a cross-section along line 5-5 of Fig. 1.

Fig. 6 is a longitudinal sectional view of a modified form of the invention.

Fig. 7 is a vertical longitudinal section of the block used in Fig. 6, and

Fig. 8 is a top plan view of the arrangement shown in Fig. 6.

Referring to Figures 1 to 5, inclusive, the mouth of the bottle has a reverse frusto-conical enlargement, at the bottom of which opens an essentially square opening b in communication with the inside of the bottle. The sides of said square opening have a convex curvature (see Fig. 2). The opening b has, in correspondence to the number of intersections of the sides thereof, four grooves c situated alon the intersections of the said curved sides.

In the opening b is forcibly inserted a block 01 made of rubber or like material, having a central hole for receiving a stopper e provided with an enlarged head 1 covering, almost entirely, the outlet ends of said grooves c.

The stopper e is forcibly inserted in the central hole of the block 11 in order to deform said block and push the outer surface of this latter against the grooves c for the purpose of reducing their cross-section and provide essential capillar passages allowing a sure regular drop distribution of the liquid.

On the mouth of the bottle is tightly screwed an outer cap h, the tightness of which being secured by a flat gasket g arranged in the cap.

According to another modification of the invention, as shown in Figs. 6 to 8 the stopper e and the tubular block d may be dispensed with and replaced by a massive block d made of the same material as the said block 01 and forcibly inserted in the essentially square opening b of the mouth of the bottle.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:

1. In a drop-counting bottle the combination, a bottle neck havin a substantially polygonal shaped opening the sides of which are curved convexly and provide a number of grooves along the intersections of said sides, a block made of resilient material forcibly inserted in said opening, and a cap for closing the mouth of the bottle.

2. A drop-counting bottle comprising in combination, a bottle neck having a substantially polygonal shaped opening the sides of which are curved convexly and provide a number of grooves along the intersections of said sides, a block made of resilient material forcibly inserted in said opening, a screw cap for closing the mouth of the bottle, and a gasket arranged in said cap for ensuring by the screwing of the cap a tight closure for the bottle.

3. A drop-counting bottle comprising in combination, a bottle neck having an essentially square shaped opening the sides of which are convexly curved to provide four grooves situated at the intersections of said sides, a tubular block of resilient material engaged in the square opening and provided with a central aperture, a headed stopper having its shank engaged in the aperture of the block with the head thereof covering almost entirely the outlet ends of said grooves, a screw cap for closing the mouth of the bottle, and a gasket arranged in said cap to ensure by screwing of the cap, a tight closure for the bottle.

4. A drop-counting bottle as claimed in claim 3, in which the opening at the mouth of the bottle is enlarged to provide an annular shoulder, and in which the gasket is annular shaped and fits on the shoulder and surrounds the head of the stopper.

PIETRO GIAVOTTO. 

